New dump goal for Maven (GitHub #107)
Log connection target *before* connection is opened.
Support for configurable connection retry count to make tests more
relyable
Tests for dump goal.
Finalize documentation for dump goal.
Tags and documentation about parallel builds.
Close socket in any case.
Extract sleep() into separate method.
Merge pull request #107 from jacoco/issue-107

Dump Goal for Maven Plugin
All JaCoCo Maven goals are marked as thread-safe (GitHub #133).
Move the socket initialization to outer scope.

This guarentees that socket is not null.
Merge pull request #156 from mfriedenhagen/move-socket-initialization-to-outer-scope

Move the socket initialization to outer scope.